CN203822291U - Drilling tool storage type central control system - Google Patents
Drilling tool storage type central control system Download PDFInfo
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- CN203822291U CN203822291U CN201320753723.XU CN201320753723U CN203822291U CN 203822291 U CN203822291 U CN 203822291U CN 201320753723 U CN201320753723 U CN 201320753723U CN 203822291 U CN203822291 U CN 203822291U
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims description 8
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- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 4
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- 238000013500 data storage Methods 0.000 abstract 1
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- 230000005540 biological transmission Effects 0.000 description 3
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- 230000009977 dual effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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Abstract
The utility model discloses a storage type central control system of an over-drilling tool, which comprises a pressure sensor, a core processor and a control system, wherein the pressure sensor is connected with the core processor through an operational amplifier, and the pressure sensor acquires external pressure data and sends the external pressure data to the core processor after the external pressure data is amplified and processed by the operational amplifier; the real-time clock is connected with the core processor and is used for providing time information for the core processor; the communication interface is connected with the core processor and is used for transmitting the preset time and the pressure threshold parameter; the memory is connected with the core processor and used for storing preset time and pressure threshold parameters; the power control switch is connected with the core processor and used for controlling the power supply and the power failure of the underground instrument string; the power supply module is used for supplying power to the device; and a core processor. Adopt the utility model discloses, can improve the effective life who crosses drilling tool storage formula logging instrument high temperature battery, reduce logging instrument cluster operating time, protect limited data storage space to effectively reduce the drilling tool logging risk, improve the construction success rate of logging well.
Description
Technical field
The utility model belongs to Oil/gas Well logger field.
Background technology
Along with oil exploration deepens continuously and the development of drilling technology, high angle hole, horizontal well and ultradeep well are more and more, and casing programme is complicated, and borehole condition is poor, and well logging difficulty is also increasing.For the part exploration and development borehole logging tool of hole condition complexity, mainly contain at present horizontal well instrument transmission well logging and two kinds of logging modes of well logging during.Horizontal well instrument transmission well logging is, by drilling rod, downhole probe is transported to shaft bottom, and this mode has two shortcomings: the one, and security risk is larger; The 2nd, when down-hole situation is too complicated, instrument can not be normally lower to shaft bottom, do not collect full well section Log Strata information.Although well logging during can overcome the above-mentioned shortcoming of horizontal well instrument transmission well logging, because cost is higher, can not extensively promote the use of at present.Therefore, should farthest reduce construction safety risk, improve well logging timeliness, gather in time again formation information, meet the demand of exploration and development, be badly in need of adopting new logger and well logging construction technology.Cross drilling tool storage type logging instrument and construction technology and can solve this difficult problem.
Publication number is CN202788827U, the Chinese patent literature that open day is on March 13rd, 2013 discloses a kind of drilling tool memory-type dual laterolog equipment of crossing, relate to Oil/gas Well logging equipment technical field, comprise automated power control section, memory circuit and main electrode, described automated power control section comprises dark lateral current source circuit, shallow lateral current source circuit, tension measuring circuit, current measurement circuit, power control circuit, memory circuit, pre-amplification circuit, provost's circuit, back-up surveillance circuit and transformer, magnitude of voltage and current value that tension measuring circuit and current measurement circuit record are transported to power control circuit, again by dark lateral current source circuit, shallow lateral current source circuit and transformer are transported to stratum.This utility model can be under the adverse circumstances such as high temperature, high pressure the formation resistivity information of storage of collected, can realize the casing programme complexity that normal cable well logging can not complete, the dual laterolog of high angle hole, horizontal well and ultradeep well that borehole condition is poor.
The course of work of crossing drilling tool storage type logging instrument is that logger string is put in the hydrophthalmia of drilling rod, in instrument string utilization, hanger is suspended in hydrophthalmia, drilling rod is delivered to instrument string after the certain depth in shaft bottom, at well head to the pitching of drilling rod hydrophthalmia, utilize slush pump pressurization, ball is pushed into upper hanger fast, then pressurization make instrument string discharge hydrophthalmia, instrument string is suspended on lower hanger.On carry drilling rod and log well, log data is stored in the memory of the inner high-capacity of instrument string, the ground system measuring apparatus degree of depth, holding time-depth data.Instrument string is suggested after well head, and ground system reads instrument string data, then the processing such as dark conversion and valid data extraction while carrying out, and obtains the degree of depth-formation information corresponding relation accurately.
If a whole set of instrument string starts working after well head is connected with the mains, in whole during well logging, the downhole instrument working time will be over 30 hours so, wherein in the most of the time logger in gathering the duty of garbage, the invalid data of well logging storage data, have greatly wasted memory space resource.
Summary of the invention
The utility model is intended to for the existing defect of above-mentioned prior art and deficiency; a kind of drilling tool memory-type central control system of crossing is provided; adopt the utility model; can make downhole instrument only in measuring well section powered operation, in non-logging interval power-off work, can improve the Acceptable life of drilling tool storage type logging instrument high-temperature battery; reduce the logger string working time; protect limited data space, thereby effectively reduced drilling tool well logging risk, improve well logging and be constructed into power.
The utility model is by adopting following technical proposals to realize:
Cross a drilling tool memory-type central control system, it is characterized in that: comprise pressure sensor, operational amplifier, core processor, real-time clock, memory, power control switch, communication interface and power module, wherein:
Pressure sensor is connected with core processor through operational amplifier, and pressure sensor gathers external pressure data and sends to core processor to carry out A/D conversion process after operational amplifier amplifies processing;
Real-time clock is connected with core processor, for providing temporal information to core processor;
Communication interface is connected with core processor, for transmitting Preset Time and pressure threshold parameter to core processor;
Memory is connected with core processor, the described Preset Time and the pressure threshold parameter that for storing core processor, receive;
Power control switch is connected with core processor, for according to power supply and the power-off of instrument string under the order control well of core processor;
Power module, for giving pressure sensor, operational amplifier, core processor and power control switch power supply;
Core processor, for according to the Preset Time and the pressure threshold parameter that are stored in memory, in conjunction with the external pressure value collecting and real-time time information, through logic judgement, by controlling the closed and disconnected of power control switch, instrument string power supply and power-off under control well.
On core processor, be also connected with reference power source, for providing reference voltage to core processor, and carry out the A/D normal voltage in when conversion as core processor.
On real-time clock, be connected with battery, for powering to real-time clock.
Described power control switch is by power supply and the power-off of instrument string under downhole instrument battery pack control well.
Described communication interface is RS485 serial communication interface, and host computer passes to core processor by RS485 serial communication interface by Preset Time and pressure threshold parameter.
Described memory is large capacity nonvolatile storage.
Pressure sensor, operational amplifier, core processor, real-time clock, battery, reference power source, memory, power control switch, communication interface and power module are all integrated in the shell that material is titanium steel.
Described battery is that high temperature resistant battery, described power module are that high temperature resistant power module, described pressure sensor are high-temperature-resistance pressure sensor, the described high temperature resistant temperature that refers to resistance to 175 degrees Celsius.
Its basic functional principle is, before instrument is gone into the well, to set central control system relevant parameter on ground.Under instrument, after set depth, instrument is started working automatically, after the well logging that pulls out of hole finishes, above mentions and reaches instrument auto-breaking after certain depth, quits work.Control in this way the logger start-stop working time; can reduce the logger working time; protect limited data space; reduce two lateral electrodes in being close to the working time of short circuit, thereby protection instrument increases instrument application life simultaneously; increase battery effective rate of utilization; effectively save logging cost, reduce well logging risk, improve success log ratio.
Compared with prior art, the technique effect that the utility model reaches is as follows:
1, the utility model can improve the Acceptable life of drilling tool storage type logging instrument high-temperature battery, reduced the logger string working time, protected limited data space, thereby effectively reduced drilling tool well logging risk, improved well logging and was constructed into power.Every well time construction of take is example, in general 4 hours of the time of specifically logging well, such as 4000 meters of dark well trip times of left and right generally surpass 24 hours, therefore rough estimate can extend battery more than 6 times.Time construction of every well can be saved battery expense and be surpassed 1.5 ten thousand yuan, can extend equally the application life of downhole instrument serializer circuit over 6 times.If an instrument is worth 300,000 yuan, 20 wells are inferior to recoverable cost.Every cover storage type logging instrument can be supporting two, can create 600,000 yuan of the output values, therefore can create larger economic worth.
2, in the utility model, be also connected with reference power source on core processor, for providing reference voltage to core processor, and carry out the A/D normal voltage in when conversion as core processor, such mode can make the force value that gathers more accurately and reliably.
3, in the utility model, on real-time clock, be connected with battery, for to real-time clock power supply, can make real-time clock in running order all the time, so that central control system has correct time information at any time.
4, in the utility model, pressure sensor, operational amplifier, core processor, real-time clock, battery, reference power source, memory, power control switch, communication interface and power module are all integrated in the shell that material is titanium steel, thereby can make the utility model stand the underground work pressure of 140MPa.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model.
Mark in figure:
1, high temperature resistant battery, 2, pressure sensor, 3, operational amplifier, 4, reference power source, 5, real-time clock, 6, core processor, 7, power control switch, 8, high temperature resistant power module, 9, large capacity nonvolatile storage, 10, RS485 serial communication interface, 11, downhole instrument battery pack one, 12, downhole instrument battery pack two, 13, downhole instrument one, 14, downhole instrument two, 15, downhole instrument N.
The specific embodiment
With reference to Figure of description 1, preferred forms of the present utility model is: it comprises pressure sensor 2, operational amplifier 3, core processor 6, real-time clock 5, memory, power control switch 7, communication interface and power module 8, wherein:
Pressure sensor 2 converts external pressure to analog quantity, and this analog quantity, after operational amplifier 33 amplifies conditioning processing, is delivered to core processor 6 and carried out the processing such as A/D conversion, digital filtering, as controlling one of logic parameter of power control switch 7.
Real-time clock 5 is connected with core processor 6, for temporal information being provided to core processor 6;
Communication interface is connected with core processor 6, for transmitting Preset Time and pressure threshold parameter to core processor 6;
Memory is connected with core processor 6, the Preset Time and the pressure threshold parameter that for storing core processor 6, receive;
Power control switch 7 is connected with core processor 6, for according to power supply and the power-off of instrument string under the order control well of core processor 6;
Power module 8, by be converted to ± 12V of 21V power supply and 5V voltage, is given pressure sensor 2, and operational amplifier 3, core processor 6 and power control switch 7 power supplies, make it normal work.
On core processor 6, be also connected with reference power source 4, reference power source 4 is to provide standard basis voltage to core processor 6, and the normal voltage while carrying out A/D conversion as core processor 6, makes the force value of collection accurately and reliably.
High-temperature battery, to real-time clock 5 power supplies, makes it in running order all the time, so that central control system at any time has correct time information, core processor 6 is using this temporal information as another logic parameter of controlling power control switch 7.
Power control switch 7 is by power supply and the power-off of instrument string under downhole instrument battery pack control well.
Communication interface is RS485 serial communication interface 10, and host computer passes to core processor 6 by RS485 serial communication interface 10 by Preset Time and pressure threshold parameter.
Memory is large capacity nonvolatile storage 9.
Pressure sensor 2, operational amplifier 3, core processor 6, real-time clock 5, battery, reference power source 4, memory, power control switch 7, communication interface and power module 8 are all integrated in the shell that material is titanium steel.
Battery is that high temperature resistant battery 1, power module 8 are high temperature resistant power module 8, pressure sensing
Device is high-temperature-resistance pressure sensor 2, the high temperature resistant temperature that refers to resistance to 175 degrees Celsius.
Before instrument is gone into the well, host computer passes to core processor 6 by RS485 serial communication interface 10 by Preset Time and pressure threshold parameter, core processor 6 is saved in these parameters in large capacity nonvolatile storage 9 after receiving parameter, so as instrument power on again after core processor 6 can read these parameters from memory.
When downhole instrument arrival well logging section is left well logging section with well logging end, core processor 66 is according to being stored in Preset Time and pressure parameter in large capacity nonvolatile storage 9, in conjunction with the external pressure value collecting and real-time time information, through logic judgement, by controlling the closed and disconnected of power control switch 7, automatically instrument battery group under control well, to downhole instrument statements based on collusion electricity and power-off, thereby realizes goal-selling.
The key technical indexes is as follows:
Heatproof: 175 ℃;
Withstand voltage: 140MPa;
External diameter: 70.0mm;
Time control range: 1min-256h;
Pressure control range: 100-20000Psi;
Length: 2311mm.
Claims (8)
1. cross drilling tool memory-type central control system for one kind, it is characterized in that: comprise pressure sensor (2), operational amplifier (3), core processor (6), real-time clock (5), memory, power control switch (7), communication interface and power module (8), wherein:
Pressure sensor (2) is connected with core processor (6) through operational amplifier (3), and pressure sensor (2) gathers external pressure data and sends to core processor (6) to carry out A/D conversion process after operational amplifier (3) amplifies processing;
Real-time clock (5) is connected with core processor (6), for temporal information being provided to core processor (6);
Communication interface is connected with core processor (6), for transmitting Preset Time and pressure threshold parameter to core processor (6);
Memory is connected with core processor (6), the described Preset Time and the pressure threshold parameter that for storing core processor (6), receive;
Power control switch (7) is connected with core processor (6), for according to power supply and the power-off of instrument string under the order control well of core processor (6);
Power module (8), for giving pressure sensor (2), operational amplifier (3), core processor (6) and power control switch (7) power supply;
Core processor (6), for basis, be stored in Preset Time and the pressure threshold parameter of memory, in conjunction with the external pressure value collecting and real-time time information, through logic judgement, by controlling the closed and disconnected of power control switch (7), instrument string power supply and power-off under control well.
2. the drilling tool memory-type central control system of crossing according to claim 1, it is characterized in that: on core processor (6), be also connected with reference power source (4), for providing reference voltage to core processor (6), and the normal voltage while carrying out A/D conversion as core processor (6).
3. the drilling tool memory-type central control system of crossing according to claim 1 and 2, is characterized in that: on real-time clock (5), be connected with battery, for giving real-time clock (5) power supply.
4. the drilling tool memory-type central control system of crossing according to claim 3, is characterized in that: described power control switch (7) is by power supply and the power-off of instrument string under downhole instrument battery pack control well.
5. the drilling tool memory-type central control system of crossing according to claim 1, it is characterized in that: described communication interface is RS485 serial communication interface (10), host computer passes to core processor (6) by RS485 serial communication interface (10) by Preset Time and pressure threshold parameter.
6. the drilling tool memory-type central control system of crossing according to claim 1, is characterized in that: described memory is large capacity nonvolatile storage (9).
7. the drilling tool memory-type central control system of crossing according to claim 1, is characterized in that: pressure sensor (2), operational amplifier (3), core processor (6), real-time clock (5), battery, reference power source (4), memory, power control switch (7), communication interface and power module (8) are all integrated in the shell that material is titanium steel.
8. the drilling tool memory-type central control system of crossing according to claim 1, it is characterized in that: described battery is high temperature resistant battery (1), described power module is high temperature resistant power module (8), described pressure sensor is high-temperature-resistance pressure sensor (2), the described high temperature resistant temperature that refers to resistance to 175 degrees Celsius.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753723.XU CN203822291U (en) | 2013-11-26 | 2013-11-26 | Drilling tool storage type central control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320753723.XU CN203822291U (en) | 2013-11-26 | 2013-11-26 | Drilling tool storage type central control system |
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| CN203822291U true CN203822291U (en) | 2014-09-10 |
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| CN201320753723.XU Expired - Fee Related CN203822291U (en) | 2013-11-26 | 2013-11-26 | Drilling tool storage type central control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201488A (en) * | 2015-10-08 | 2015-12-30 | 中国石油集团渤海钻探工程有限公司 | Memory-type down-hole electronic pressure gauge with ultra-low power dissipation |
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2013
- 2013-11-26 CN CN201320753723.XU patent/CN203822291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201488A (en) * | 2015-10-08 | 2015-12-30 | 中国石油集团渤海钻探工程有限公司 | Memory-type down-hole electronic pressure gauge with ultra-low power dissipation |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20171126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |